Claude Opus 4.5 (2025-11-01)
JSON →A dated snapshot of Anthropic's Claude Opus 4.5 model for stable API usage.
Specs
context window 200K tokens
max output 64K tokens
input price $5 / 1M tokens
output price $25 / 1M tokens
Capabilities
tool-usejson-modestreamingreasoningcode-generationfunction-callingprompt-cachingvision
Dates
releasedNov 2025
Resources
homepagewww.anthropic.com ↗
API
full doc /v1/models/claude-opus-4-5-20251101